QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#123169#1811. How to Move the BeansEastKingWA 11ms13724kbC++173.4kb2023-07-11 20:27:592023-07-11 20:28:02

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-07-11 20:28:02]
  • 评测
  • 测评结果:WA
  • 用时:11ms
  • 内存:13724kb
  • [2023-07-11 20:27:59]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
char s[1005][1005];
int R[1005][1005],L[1005][1005];
int STL[1005][11][4];
int STR[1005][11][4];
int dp[1005][1005];
int mex(int x=4,int y=4,int z=4){
    for(int i=0;i<=4;i++){
        if(x!=i&&y!=i&&z!=i)return i;
    }
}
int main(){
    int H,W;
    scanf("%d%d",&H,&W);
    for(int i=0;i<H;i++){
        scanf("%s",s[i]);
    }
    for(int j=0;j<W;j++)s[H][j]='.';
    for(int i=0;i<H;i++){
        for(int j=0;j<2*W;j++){

            if(s[i][j%W]!='.')L[i][j%W]=max(1,L[i][(j+W-1)%W]+1);
            else L[i][j%W]=0;
            if(L[i][j%W]>W)L[i][j%W]=W;
        }
        for(int j=2*W-1;j>=0;j--){
            if(s[i][j%W]!='.')R[i][j%W]=max(1,R[i][(j+1)%W]+1);
            else R[i][j%W]=0;
            if(R[i][j%W]>W)R[i][j%W]=W;
        }
    }
    int ans=0;
    for(int i=H-1;i>=0;i--){
        {
            memset(STL,0,sizeof(STL));
            memset(STR,0,sizeof(STR));
            for(int j=0;j<W;j++){
                for(int l=0;l<=3;l++){
                    if(s[i+1][j]=='.'){
                        STL[j][0][l]=mex(l);

                        STR[j][0][l]=mex(l);
                    }else{
                        STL[j][0][l]=mex(dp[i+1][j],l);

                        STR[j][0][l]=mex(dp[i+1][j],l);
                    }
                }
            }
            for(int k=1;k<=10;k++){
                for(int j=0;j<W;j++){
                    for(int l=0;l<=3;l++){
                        if(L[i][j]>=(1<<k)){
                            STL[j][k][l]=STL[(j-(1<<(k-1))+W)%W][k-1][STL[j][k-1][l]];
                        }
                        if(R[i][j]>=(1<<k)){
                            STR[j][k][l]=STR[(j+(1<<(k-1))+W)%W][k-1][STR[j][k-1][l]];
                        }
                    }
                }
            }
            //calc dp[i][j] len R[i][j]-1
            auto calcL=[&](int dis,int len){
                int ans=3;
                for(int j=10;j>=0;j--){
                    if((len>>j)&1){
                        ans=STL[dis][j][ans];
                        dis=(dis-(1<<j)+W)%W;
                    }
                }
                return ans;
            };
            auto calcR=[&](int dis,int len){
                int ans=3;
                for(int j=10;j>=0;j--){
                    if((len>>j)&1){
                        ans=STR[dis][j][ans];
                        dis=(dis+(1<<j)+W)%W;
                    }
                }
                return ans;
            };
            for(int j=0;j<W;j++){
                if(s[i][j]!='.'){
                    int d1=4,d2=4,d3=4;
                    if(s[i+1][j]!='.'){
                        d1=dp[i+1][j];
                    }

                    if(R[i][j]>1){
                        d2=calcL((i+R[i][j]-1+W)%W,R[i][j]-1);
                    }
                    if(L[i][j]>1){
                        d3=calcR((i-L[i][j]+1+W)%W,L[i][j]-1);
                    }
                    dp[i][j]=mex(d1,d2,d3);
                }
                    //printf("dp[%d][%d]=%d\n",i,j,dp[i][j]);
            }
        }
    }
    for(int i=0;i<H;i++){
        for(int j=0;j<W;j++){
            if(s[i][j]=='B')ans^=dp[i][j];
        }
    }
    if(ans==0)printf("Bob");
    else printf("Alice");
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3976kb

input:

2 3
B.#
#..

output:

Alice

result:

ok "Alice"

Test #2:

score: 0
Accepted
time: 2ms
memory: 6136kb

input:

1 1
B

output:

Bob

result:

ok "Bob"

Test #3:

score: 0
Accepted
time: 1ms
memory: 6032kb

input:

1 3
B#.

output:

Alice

result:

ok "Alice"

Test #4:

score: 0
Accepted
time: 1ms
memory: 4104kb

input:

5 18
#.#..#.#..###..###
##...#.#..#.#..#..
#....#.#..###..#..
##...#.#..#....#..
#.#..###..#....###

output:

Bob

result:

ok "Bob"

Test #5:

score: -100
Wrong Answer
time: 11ms
memory: 13724kb

input:

293 249
#B..B..BBB..B.B.B...#BBB..B#B.BBB.#B##B.BB.B.##B#B.BB..B.#B#BB.BB##B#BB#...B..BB..B.B##B.B#B.#.##..B.#..BBBB#.BB..#.BBB#B##BB....B.##B..#...B#..B.BB#B.#...B#.BB.#B#.B...BBB.B.B..B....##.B..B##.BB#B.B.BBB.B#B..#.B.B#.B##..B#.##BB.#BB#.BB.#.B..BB.BB.B
BB.B.#.B#BB.B.B..B.###.B...BB.##.B...B#BB....

output:

Bob

result:

wrong answer 1st words differ - expected: 'Alice', found: 'Bob'